Immediate Mode

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jsgf edited this page Jan 21, 2011 · 1 revision

PSPGL supports specifying geometry in immediate mode within a glBegin/glEnd pair. Immediate mode is useful for writing programs quickly, debugging, instrumentation, etc, but it is never going to be a high-performance path.

The following primitives are supported:

GL_POINTS Only 1 pixel points
GL_LINES Only 1 pixel lines
GL_LINE_STRIP OK
GL_LINE_LOOP Behaves the same as a LINE_STRIP: the closing edge isn't drawn
GL_TRIANGLES OK
GL_TRIANGLE_STRIP OK
GL_TRIANGLE_FAN OK
GL_QUADS not supported
GL_QUAD_STRIP not supported
GL_POLYGON not supported